/Engine/Source/Runtime/Engine/Classes/Debug/DebugDrawService.h
Initialize a debug canvas object then calls above draw. If CanvasObject is null it will find/create it for you
static void Draw ( const [FEngineShowFlags](API\Runtime\Engine\FEngineShowFlags) Flags, [FViewport](API\Runtime\Engine\FViewport) * Viewport, [FSceneView](API\Runtime\Engine\FSceneView) * View, [FCanvas](API\Runtime\Engine\FCanvas) * Canvas, [UCanvas](API\Runtime\Engine\Engine\UCanvas) * CanvasObject )